Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D383798 | Hand held electronic game | Gumpei Yokoi, Hideo Nagata, Kenichi Sugino, Noboru Wakitani, Norikatsu Furuta | 1997-09-16 |
| D381977 | Game cartridge | Hideo Nagata, Kenichi Sugino | 1997-08-05 |